4) The error messages ‘user.home read can't save initial settings’,‘querePrintJob can't print’,‘can't use cut/copy/paste’ are displayed. Is this a java related problem?
Since NetSkate Visualizer has been developed using Java's applet technology, the application prevents unauthorized updates to the system. To validate the above mentioned function, use policy tool (distributed by Sun Microsystems, included in J2SE). Refer to the manual for use and settings.

5) Network map generation isn't going well
To generate detailed network maps we recommend setting SNMP for network equipment (it is more effective if the router is set to SNMP during setup).

6) What is a community?
It is something like a password. Most of the network equipments connected to the network support SNMP (a type of network management protocol), which provides information, such as network traffic. This allows any user to access this type of information. To limit the people who can access this, communities are set for network equipment.

7) How do you set SNMP on Windows?
＊ Refer to the site below for SNMP installation and setting on Windows machines
How to install SNMP on Windows machines.

8) Installing Java on Windows
Since it won't run on Windows' standard Java VM, please download Sun Java2 (J2SE) from the URL: http://java.sun.com/j2se/1.4/download.html

After downloading, run installer to install Sun Java2.
(Both JRE and SDK can be downloaded, but we recommend SDK)

Procedure:
1) Open http://java.sun.com/j2se/1.4/download.html in your Web browser.
2) Click on the SDK link of Windows in ‘Download J2SE v 1.4.2_03’.
3) The terms of the license will be displayed. Select ‘Accept’ and click on `Continue’.
4) Click on the Windows installer file and download.
(‘Windows Offline Installation, Multi-language’)
5) Start up the installer and follow its instructions to install.

9) How to delete NetSkate Visualizer
Sometimes even after uninstalling, part of the program will remain undeleted. By default, NetSkate would have been installed in the folder C:\NetSkate. Once you delete this folder un installation will be complete.

10) An error is displayed and start up is not possible
An error message ‘Data still present (Win32 Error:234 file "Win32Util.cpp"line:1425)’ may be displayed and Netskate Visualizer may not start.
How to avoid: create a new user account and install NetSkate Visualizer

11) Functions are limited after a display instruction to use Policy Tool for settings
In the default path of Java installation, the following messages may be displayed when Visualizer applet is started.

You don't have the following authority? user.home read Initial settings cannot be saved

You don't have the following authority ? queuePrintJob Print function cannot be used.

You don't have the following authority ? ShutDown Hooks

This is because NetSkate Visualizer is produced from Java's applet technology. This technology prevents unauthorized rewriting of the program by the system.
To activate the above, use policytool (included in J2SE) distributed by Sun Microsystems.

For setting, refer here